Growth Delay Due to Insulin-Like Growth Factor Type 1 Deficiency, also known as growth delay-hearing loss-intellectual disability syndrome, is related to insulin-like growth factor i and laron syndrome. An important gene associated with Growth Delay Due to Insulin-Like Growth Factor Type 1 Deficiency is IGF1 (Insulin Like Growth Factor 1). The drugs Mecasermin and Insulin have been mentioned in the context of this disorder. Affiliated tissues include placenta and heart, and related phenotypes are intellectual disability and failure to thrive